Replace null_resource with terraform_data

agents.tf

@@ -59,10 +59,10 @@ locals {
   ) }
 }
 
-resource "null_resource" "agent_config" {
+resource "terraform_data" "agent_config" {
   for_each = local.agent_nodes
 
-  triggers = {
+  triggers_replace = {
     agent_id = module.agents[each.key].id
     config   = sha1(yamlencode(local.k3s-agent-config[each.key]))
   }
@@ -85,11 +85,15 @@ resource "null_resource" "agent_config" {
     inline = [local.k3s_config_update_script]
   }
 }
+moved {
+  from = null_resource.agent_config
+  to   = terraform_data.agent_config
+}
 
-resource "null_resource" "agents" {
+resource "terraform_data" "agents" {
   for_each = local.agent_nodes
 
-  triggers = {
+  triggers_replace = {
     agent_id = module.agents[each.key].id
   }
 
@@ -123,11 +127,15 @@ resource "null_resource" "agents" {
   }
 
   depends_on = [
-    null_resource.first_control_plane,
-    null_resource.agent_config,
+    terraform_data.first_control_plane,
+    terraform_data.agent_config,
     hcloud_network_subnet.agent
   ]
 }
+moved {
+  from = null_resource.agents
+  to   = terraform_data.agents
+}
 
 resource "hcloud_volume" "longhorn_volume" {
   for_each = { for k, v in local.agent_nodes : k => v if((v.longhorn_volume_size >= 10) && (v.longhorn_volume_size <= 10240) && var.enable_longhorn) }
@@ -145,10 +153,10 @@ resource "hcloud_volume" "longhorn_volume" {
   delete_protection = var.enable_delete_protection.volume
 }
 
-resource "null_resource" "configure_longhorn_volume" {
+resource "terraform_data" "configure_longhorn_volume" {
   for_each = { for k, v in local.agent_nodes : k => v if((v.longhorn_volume_size >= 10) && (v.longhorn_volume_size <= 10240) && var.enable_longhorn) }
 
-  triggers = {
+  triggers_replace = {
     agent_id = module.agents[each.key].id
   }
 
@@ -174,6 +182,10 @@ resource "null_resource" "configure_longhorn_volume" {
     hcloud_volume.longhorn_volume
   ]
 }
+moved {
+  from = null_resource.configure_longhorn_volume
+  to   = terraform_data.configure_longhorn_volume
+}
 
 resource "hcloud_floating_ip" "agents" {
   for_each = { for k, v in local.agent_nodes : k => v if coalesce(lookup(v, "floating_ip"), false) }
@@ -191,14 +203,14 @@ resource "hcloud_floating_ip_assignment" "agents" {
   server_id      = module.agents[each.key].id
 
   depends_on = [
-    null_resource.agents
+    terraform_data.agents
   ]
 }
 
-resource "null_resource" "configure_floating_ip" {
+resource "terraform_data" "configure_floating_ip" {
   for_each = { for k, v in local.agent_nodes : k => v if coalesce(lookup(v, "floating_ip"), false) }
 
-  triggers = {
+  triggers_replace = {
     agent_id       = module.agents[each.key].id
     floating_ip_id = hcloud_floating_ip.agents[each.key].id
   }
@@ -234,3 +246,7 @@ resource "null_resource" "configure_floating_ip" {
     hcloud_floating_ip_assignment.agents
   ]
 }
+moved {
+  from = null_resource.configure_floating_ip
+  to   = terraform_data.configure_floating_ip
+}

autoscaler-agents.tf

@@ -52,10 +52,10 @@ locals {
   }
 }
 
-resource "null_resource" "configure_autoscaler" {
+resource "terraform_data" "configure_autoscaler" {
   count = length(var.autoscaler_nodepools) > 0 ? 1 : 0
 
-  triggers = {
+  triggers_replace = {
     template = local.autoscaler_yaml
   }
   connection {
@@ -79,12 +79,16 @@ resource "null_resource" "configure_autoscaler" {
 
   depends_on = [
     hcloud_load_balancer.cluster,
-    null_resource.control_planes,
+    terraform_data.control_planes,
     random_password.rancher_bootstrap,
     hcloud_volume.longhorn_volume,
     data.hcloud_image.microos_x86_snapshot
   ]
 }
+moved {
+  from = null_resource.configure_autoscaler
+  to   = terraform_data.configure_autoscaler
+}
 
 data "cloudinit_config" "autoscaler_config" {
   count = length(var.autoscaler_nodepools)
@@ -155,9 +159,9 @@ data "hcloud_servers" "autoscaled_nodes" {
   with_selector = "hcloud/node-group=${local.cluster_prefix}${each.value}"
 }
 
-resource "null_resource" "autoscaled_nodes_registries" {
+resource "terraform_data" "autoscaled_nodes_registries" {
   for_each = local.autoscaled_nodes
-  triggers = {
+  triggers_replace = {
     registries = var.k3s_registries
   }
 
@@ -178,3 +182,7 @@ resource "null_resource" "autoscaled_nodes_registries" {
     inline = [local.k3s_registries_update_script]
   }
 }
+moved {
+  from = null_resource.autoscaled_nodes_registries
+  to   = terraform_data.autoscaled_nodes_registries
+}

control_planes.tf

@@ -122,10 +122,10 @@ locals {
   ) }
 }
 
-resource "null_resource" "control_plane_config" {
+resource "terraform_data" "control_plane_config" {
   for_each = local.control_plane_nodes
 
-  triggers = {
+  triggers_replace = {
     control_plane_id = module.control_planes[each.key].id
     config           = sha1(yamlencode(local.k3s-config[each.key]))
   }
@@ -149,16 +149,20 @@ resource "null_resource" "control_plane_config" {
   }
 
   depends_on = [
-    null_resource.first_control_plane,
+    terraform_data.first_control_plane,
     hcloud_network_subnet.control_plane
   ]
 }
+moved {
+  from = null_resource.control_plane_config
+  to   = terraform_data.control_plane_config
+}
 
 
-resource "null_resource" "authentication_config" {
+resource "terraform_data" "authentication_config" {
   for_each = local.control_plane_nodes
 
-  triggers = {
+  triggers_replace = {
     control_plane_id      = module.control_planes[each.key].id
     authentication_config = sha1(var.authentication_config)
   }
@@ -181,15 +185,19 @@ resource "null_resource" "authentication_config" {
   }
 
   depends_on = [
-    null_resource.first_control_plane,
+    terraform_data.first_control_plane,
     hcloud_network_subnet.control_plane
   ]
 }
+moved {
+  from = null_resource.authentication_config
+  to   = terraform_data.authentication_config
+}
 
-resource "null_resource" "control_planes" {
+resource "terraform_data" "control_planes" {
   for_each = local.control_plane_nodes
 
-  triggers = {
+  triggers_replace = {
     control_plane_id = module.control_planes[each.key].id
   }
 
@@ -226,9 +234,13 @@ resource "null_resource" "control_planes" {
   }
 
   depends_on = [
-    null_resource.first_control_plane,
-    null_resource.control_plane_config,
-    null_resource.authentication_config,
+    terraform_data.first_control_plane,
+    terraform_data.control_plane_config,
+    terraform_data.authentication_config,
     hcloud_network_subnet.control_plane
   ]
 }
+moved {
+  from = null_resource.control_planes
+  to   = terraform_data.control_planes
+}

data.tf

@@ -32,7 +32,7 @@ data "github_release" "calico" {
 #   count = local.has_external_load_balancer ? 0 : 1
 #   name  = var.cluster_name
 
-#   depends_on = [null_resource.kustomization]
+#   depends_on = [terraform_data.kustomization]
 # }
 
 data "hcloud_ssh_keys" "keys_by_selector" {

docs/terraform.md

@@ -58,19 +58,19 @@
 | [local_file.nginx_values](https://registry.terraform.io/providers/hashicorp/local/latest/docs/resources/file) | resource |
 | [local_file.traefik_values](https://registry.terraform.io/providers/hashicorp/local/latest/docs/resources/file) | resource |
 | [local_sensitive_file.kubeconfig](https://registry.terraform.io/providers/hashicorp/local/latest/docs/resources/sensitive_file) | resource |
-| [null_resource.agent_config](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
-| [null_resource.agents](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
-| [null_resource.authentication_config](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
-| [null_resource.autoscaled_nodes_registries](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
-| [null_resource.configure_autoscaler](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
-| [null_resource.configure_floating_ip](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
-| [null_resource.configure_longhorn_volume](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
-| [null_resource.control_plane_config](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
-| [null_resource.control_planes](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
-| [null_resource.first_control_plane](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
-| [null_resource.kustomization](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
-| [null_resource.kustomization_user](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
-| [null_resource.kustomization_user_deploy](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
+| [terraform_data.agent_config](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
+| [terraform_data.agents](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
+| [terraform_data.authentication_config](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
+| [terraform_data.autoscaled_nodes_registries](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
+| [terraform_data.configure_autoscaler](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
+| [terraform_data.configure_floating_ip](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
+| [terraform_data.configure_longhorn_volume](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
+| [terraform_data.control_plane_config](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
+| [terraform_data.control_planes](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
+| [terraform_data.first_control_plane](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
+| [terraform_data.kustomization](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
+| [terraform_data.kustomization_user](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
+| [terraform_data.kustomization_user_deploy](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
 | [random_password.k3s_token](https://registry.terraform.io/providers/hashicorp/random/latest/docs/resources/password) | resource |
 | [random_password.rancher_bootstrap](https://registry.terraform.io/providers/hashicorp/random/latest/docs/resources/password) | resource |
 | [cloudinit_config.autoscaler_config](https://registry.terraform.io/providers/hashicorp/cloudinit/latest/docs/data-sources/config) | data source |

examples/kustomization_user_deploy/README.md

@@ -58,15 +58,15 @@ To check the existing kustomization, you can run the following command:
 ```
 $ terraform state list | grep kustom
   ...
-  module.kube-hetzner.null_resource.kustomization
-  module.kube-hetzner.null_resource.kustomization_user["demo-config-map.yaml.tpl"]
-  module.kube-hetzner.null_resource.kustomization_user["demo-pod.yaml.tpl"]
-  module.kube-hetzner.null_resource.kustomization_user["kustomization.yaml.tpl"]
+  module.kube-hetzner.terraform_data.kustomization
+  module.kube-hetzner.terraform_data.kustomization_user["demo-config-map.yaml.tpl"]
+  module.kube-hetzner.terraform_data.kustomization_user["demo-pod.yaml.tpl"]
+  module.kube-hetzner.terraform_data.kustomization_user["kustomization.yaml.tpl"]
   ...
 ```
 
 If you want to rerun just the kustomization part, you can use the following command:
 
 ```
-terraform apply -replace='module.kube-hetzner.null_resource.kustomization_user["kustomization.yaml.tpl"]' --auto-approve
+terraform apply -replace='module.kube-hetzner.terraform_data.kustomization_user["kustomization.yaml.tpl"]' --auto-approve
 ```

init.tf

@@ -20,7 +20,7 @@ resource "hcloud_load_balancer" "cluster" {
 }
 
 
-resource "null_resource" "first_control_plane" {
+resource "terraform_data" "first_control_plane" {
   connection {
     user           = "root"
     private_key    = var.ssh_private_key
@@ -102,6 +102,10 @@ resource "null_resource" "first_control_plane" {
     hcloud_network_subnet.control_plane
   ]
 }
+moved {
+  from = null_resource.first_control_plane
+  to   = terraform_data.first_control_plane
+}
 
 # Needed for rancher setup
 resource "random_password" "rancher_bootstrap" {
@@ -111,8 +115,8 @@ resource "random_password" "rancher_bootstrap" {
 }
 
 # This is where all the setup of Kubernetes components happen
-resource "null_resource" "kustomization" {
-  triggers = {
+resource "terraform_data" "kustomization" {
+  triggers_replace = {
     # Redeploy helm charts when the underlying values change
     helm_values_yaml = join("---\n", [
       local.traefik_values,
@@ -373,8 +377,12 @@ resource "null_resource" "kustomization" {
 
   depends_on = [
     hcloud_load_balancer.cluster,
-    null_resource.control_planes,
+    terraform_data.control_planes,
     random_password.rancher_bootstrap,
     hcloud_volume.longhorn_volume
   ]
 }
+moved {
+  from = null_resource.kustomization
+  to   = terraform_data.kustomization
+}

kubeconfig.tf

@@ -8,7 +8,7 @@ data "remote_file" "kubeconfig" {
   }
   path = "/etc/rancher/k3s/k3s.yaml"
 
-  depends_on = [null_resource.control_planes[0]]
+  depends_on = [terraform_data.control_planes[0]]
 }
 
 locals {

kustomization_user.tf

@@ -2,7 +2,7 @@ locals {
   user_kustomization_templates = try(fileset("extra-manifests", "**/*.yaml.tpl"), toset([]))
 }
 
-resource "null_resource" "kustomization_user" {
+resource "terraform_data" "kustomization_user" {
   for_each = local.user_kustomization_templates
 
   connection {
@@ -24,16 +24,20 @@ resource "null_resource" "kustomization_user" {
     destination = replace("/var/user_kustomize/${each.key}", ".yaml.tpl", ".yaml")
   }
 
-  triggers = {
+  triggers_replace = {
     manifest_sha1 = "${sha1(templatefile("extra-manifests/${each.key}", var.extra_kustomize_parameters))}"
   }
 
   depends_on = [
-    null_resource.kustomization
+    terraform_data.kustomization
   ]
 }
+moved {
+  from = null_resource.kustomization_user
+  to   = terraform_data.kustomization_user
+}
 
-resource "null_resource" "kustomization_user_deploy" {
+resource "terraform_data" "kustomization_user_deploy" {
   count = length(local.user_kustomization_templates) > 0 ? 1 : 0
 
   connection {
@@ -57,11 +61,15 @@ resource "null_resource" "kustomization_user_deploy" {
 
   lifecycle {
     replace_triggered_by = [
-      null_resource.kustomization_user
+      terraform_data.kustomization_user
     ]
   }
 
   depends_on = [
-    null_resource.kustomization_user
+    terraform_data.kustomization_user
   ]
 }
+moved {
+  from = null_resource.kustomization_user_deploy
+  to   = terraform_data.kustomization_user_deploy
+}